diff --git a/doc/private/branches b/doc/private/branches
index a120544821..b781820329 100644
--- a/doc/private/branches
+++ b/doc/private/branches
@@ -45,6 +45,7 @@ rt15256				new
 rt15327				new	
 rt15347				new	
 rt15383				new	
+rt15391				new	
 rt1727				open		// ixfr-from-differences workfile
 rt1727b				open	
 rt1727c				open